English — Forum #723 (Page 625/642)

1. Please ask an expert to help answer - HCBBS Forum
2. How much heat is released when one ton of water vapor condenses from 51 degrees to 25 degrees? Waiting online! I’m really in a hurry - HCBBS Forum
3. EIA for Sinopec’s coal-to-gas pipeline - HCBBS Forum
4. Reuse of domestic wastewater for household use - HCBBS Forum
5. One question per day: 6 wealth points for correct answers, 2 wealth points for participation, Question 221 - HCBBS Forum
6. 【Daily Question】Chemical Engineering Principles 086: Hydrocyclone Separation (June 21) - HCBBS Forum
7. HG20623 Large-diameter steel pipe flange - HCBBS Forum
8. Seeking advice - HCBBS Forum
9. When working on site, 24V+grounding will not blow the fuse - HCBBS Forum
10. Code for Fire Protection Design of Petrochemical Enterprises 5.5.7 - HCBBS Forum
11. Magnetic pump capable of withstanding high and low temperatures - HCBBS Forum
12. Do you still remember that song \"Resolute Rose\"? - HCBBS Forum
13. The problem with system flowcharts is quite annoying - HCBBS Forum
14. Discussion on the brine heat exchange scheme - HCBBS Forum
15. Weekly topic: 8 wealth points for those who answer correctly, 2 wealth points for participation； Question 83 - HCBBS Forum
16. Issues with equipment pressure testing~~~~~~~ - HCBBS Forum
17. Why are compressors manufactured as skids - HCBBS Forum
18. Connecting water pumps in series can increase the head pressure; why then isn’t the total head equal to the sum of the head pressures of each pump in the series? - HCBBS Forum
19. Does the space velocity of the process gas affect the catalyst? - HCBBS Forum
20. Those who understand the process for chlorinated paraffin 52, come on in! - HCBBS Forum
21. Problem of purging fixed arch tanks - HCBBS Forum
22. For a 400-mm diameter pipe in which the fluid temperature is 150 degrees, insulated with 50 mm thick rock wool and covered with 0.5 mm thick galvanized iron sheet, how should the external surface temperature be calculated... - HCBBS Forum
23. Discussion on regulatory provisions for oil depots - HCBBS Forum
24. Is there any heterogenization facility in the northwest? - HCBBS Forum
25. Pump head - HCBBS Forum
26. Weekly topic: 5 wealth points for those who answer correctly, 2 wealth points for participation； Question 73 - HCBBS Forum
27. What are the main parameters of the fuel coal used in your plant’s gasifier? - HCBBS Forum
28. How to restore the biochemical system as quickly as possible? - HCBBS Forum
29. Material selection for the vaporizer in ethanol production plants - HCBBS Forum
30. Are there any new companies established in the Northeast for alkylation? - HCBBS Forum
31. Use of low-temperature catalytic method for sulfuric acid exhaust gas treatment - HCBBS Forum
32. Why is steam introduced into the methanol tank? - HCBBS Forum
33. Correlation and adjustment of pulsed cumulative flow rate - HCBBS Forum
34. A reward from the Dragon Boat Festival! - HCBBS Forum
35. About MVR - HCBBS Forum
36. Regarding the issue of thread size, how should threads with a nominal diameter exceeding 300 mm be designed? - HCBBS Forum
37. Records of changes to the DCS control scheme, interlock management system, interlock change records, etc - HCBBS Forum
38. Operating current of zero-pole distance cell - HCBBS Forum
39. Which brother has used an air seal? ! - HCBBS Forum
40. Shandong Rongxin Coal Chemical Co., Ltd - HCBBS Forum
41. Friends in the fine chemicals industry (acrylic resins, leather chemicals) - HCBBS Forum
42. On the issue of the shutdown time for special valves in large catalytic units - HCBBS Forum
43. I’ve received two offers at the same time; I hope everyone can give me some advice - HCBBS Forum
44. Why does ammonium sulfate turn red (a light shade) when exposed to light, and what are some good solutions? - HCBBS Forum
45. Is there anyone whose company has strict management? - HCBBS Forum
46. Why is the control valve at the bottom of the atmospheric and vacuum distillation initial distillation tower adjusted using a manual operator instead of a control valve? - HCBBS Forum
47. Initial operation of sulfur exhaust hydrogenation - HCBBS Forum
48. Understanding of GB: industry standard or DB. Still need to take a look at the Standardization Law - HCBBS Forum
49. A super funny online comment on a news story - HCBBS Forum
50. Leakage phenomenon in molecular sieve steam heaters - HCBBS Forum
51. New user seeking help: Which manufacturers use isopentenol? - HCBBS Forum
52. Tips for Preparing for the First-Class Constructor Exam 10 – Some Practical Preparation Tips - HCBBS Forum
53. 【Daily Question】Chemical Engineering Principles 087: Factors Affecting Heat Transfer Process (June 22) - HCBBS Forum
54. Feed parameters for delayed coking units - HCBBS Forum
55. Can the feed inlet of a vertical container be located at the bottom? - HCBBS Forum
56. Exchange on advanced control soft instruments and process calculations for catalytic cracking - HCBBS Forum
57. Methanol Weekly Topic: How to deal with unsatisfactory water solubility in methanol distillation? 2015.06.15--06.22 - HCBBS Forum
58. Issues regarding the regulations on the management of occupational health technology service agencies - HCBBS Forum
59. Which company is the best for fiberglass septic tanks? - HCBBS Forum
60. Without back pressure, a metering pump cannot simultaneously meet both flow rate and pressure requirements! - HCBBS Forum
61. What is the purpose of installing an ABC stripping tower in the transformation section, and what is its principle? - HCBBS Forum
62. How should the saturated vapor pressure be determined for the pumps located behind the flash tank and large storage tanks in the calculations? - HCBBS Forum
63. There are too many mosquitoes; it’s hard to sleep - HCBBS Forum
64. How to handle tank cleaning of ethanol storage tanks - HCBBS Forum
65. English is a crazy language - HCBBS Forum
66. Synthesis and applications of ether amines, polyether amines, and polyether polyamines - HCBBS Forum
67. Saturated steam and superheated steam - HCBBS Forum
68. Air flow meter - HCBBS Forum
69. Sewage tank lid supplier - HCBBS Forum
70. What is the purpose of the Porsmann sleeve installed in the gasifier of a coal pulverization pressurized gasification unit? - HCBBS Forum
71. Questions regarding the welding of stainless steel pipes - HCBBS Forum
72. Regarding the rapid shutdown components and starting oil of steam turbines - HCBBS Forum
73. If you work overtime at your workplace, does your boss pay you overtime pay? - HCBBS Forum
74. Seek the actual exam questions on power engineering knowledge from 2014 - HCBBS Forum
75. No hazards were found as a result of the hazard inspection - HCBBS Forum
76. Regarding the issue of the flow meter being installed in reverse - HCBBS Forum
77. One question per day; those who answer correctly receive 6 wealth points, while participants receive 2 wealth points； Question 230 - HCBBS Forum
78. Issues with the transportation and storage of sulfuric acid; seeking answers from experts! - HCBBS Forum
79. There is a nameplate on the pump - HCBBS Forum
80. Difference between electrostatic welding plates and bolt electrostatic bonding - HCBBS Forum
81. What are the spare parts needed to start up a pump? - HCBBS Forum
82. Polyether design - HCBBS Forum
83. 【Weekly Topic】Topic on “Changing Jobs” (4th week of June) - HCBBS Forum
84. Materials S11306 and S11348 - HCBBS Forum
85. Questions about compressors? - HCBBS Forum
86. One question per week (6): Case studies for safety professionals - HCBBS Forum
87. Who knows which design institute is capable of designing hydrogen peroxide production plants - HCBBS Forum
88. 【Daily Question】Chemical Engineering Principles 089: Advantages and Disadvantages of Multi-tube Heat Exchangers (June 24) - HCBBS Forum
89. It is recommended that the safety sector organize a series of activities focusing on watching news reports about accidents - HCBBS Forum
90. Downstream fine chemicals from acrylonitrile have broad market applications - HCBBS Forum
91. Discussion on heat transfer oil selection and product recommendations? - HCBBS Forum
92. Distance requirements between Class A storage tank areas and the corresponding transfer pumps - HCBBS Forum
93. Regarding the comparison between the unit control systems CCC and ITCC, in terms of stability, energy savings, and operability - HCBBS Forum
94. Discussion on issues related to the assembly of machine seals - HCBBS Forum
95. Looking for jobs related to the pretreatment of coal-based needle coke or the further processing of coal tar pitch - HCBBS Forum
96. The food that a 95-year-old master of traditional Chinese medicine has relied on throughout his life - HCBBS Forum
97. Weekly topic: 5 Wealth points for correct answers, 2 Wealth points for participation； Question 74 - HCBBS Forum
98. Seeking advice from experts in mechanical processing - HCBBS Forum
99. Textbook for the Public Facilities (Water Supply and Drainage) Professional Examination - HCBBS Forum
100. What does “general-purpose-network” mean? - HCBBS Forum